Effect of non-magnetic doping on leakage and magnetic properties of BiFeO3 thin films |
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| Authors: | Jie Wei Desheng Xue |
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| Affiliation: | a Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, Shan Xi Province, PR China
b Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, Gansu Province, PR China |
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| Abstract: | In this paper, we show that the leakage current properties of BiFeO3 (BFO) thin films have been greatly improved by Zr-doping. In contrast, the magnetic properties of Zr-doped BFO films are affected as a weak ferromagnetism. Beyond the double-exchange interactions arising from the creation of Fe2+, we propose another simple model considering the replacement of the magnetically active Fe3+, time to time, by a non-active Zr4+, which is expected to induce a local ferromagnetic coupling rather than an antiferromagnetic one. |
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| Keywords: | Multiferroics Thin films Leakage current Ferromagnetism Double-exchange interaction |
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